. >>> geneticists are studying the dna of adam lanza. he shot his mom and killed 26 people in newtown before taking his own life. the connecticut health center was asked to join the investigation to look for threws about the roots of his -- clues about the roots of his violence in his dna. >>> you can gamble 24 hours a day, 7 days a week at maryland live casino right now. they made it possible. the casino operators say the expanded hours will lead to more jobs and revenue for the state. the state's two other casinos have not yet adopted that 24 hour 7 day a week schedule yet. >>> with same sex marriage set to become legal in maryland next week now a new debate about discrimination laws regarding same sex marriage. >> scott broom was in annapolis where a trolley bus operator is getting out of the wedding business altogether. >> reporter: the discover annapolis trolley does not just have tourists, it does a good business with wedding parties as well as you can see on the website. but no more. operator matt grubs announced he will not do bu